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Finding the Fourth Proportional to 252,314.20, 378,471.30 and 242,637.40

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Solution

The fourth proportional to 252,314.20, 378,471.30 and 242,637.40 is: 363,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,314.20 : 378,471.30 = 242,637.40 : x
  2. Step 2: Convert to fraction form
    252,314.20/378,471.30 = 242,637.40/x
  3. Step 3: Cross multiply
    252,314.20x = 378,471.30 × 242,637.40
  4. Step 4: Simplify right side
    252,314.20x = 91,831,292,206.62
  5. Step 5: Solve for x
    x = 91,831,292,206.62/252,314.20
  6. Step 6: Final answer
    x = 363,956.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.